A. Gravity settling chamber
B. Cyclone separator
C. Electrostatic precipitator
D. Bag filter
A. Low excess air
B. Very high excess air
C. Gaseous fuel in the furnace
D. Liquid fuel in the furnace
A. Grit
B. Aggregates
C. Aerosols
D. Smoke
A. Moderately
B. Highly
C. Extremely
D. Very extremely
A. 50 ppm
B. 100 ppm
C. 300 ppm
D. 700 ppm
A. I-131
B. Sr-90
C. Au-198
D. Ra-226
A. Foaming from boilers
B. Its dissolved oxygen content
C. Its silica content
D. Caustic embrittlement
A. Mercury
B. Brine
C. Phosphate
D. None of these
A. Highly
B. Moderately
C. Extremely
D. Very extremely
A. Phosgene
B. Methyl isocyanate (MIC)
C. Carbon monoxide
D. Sulphur dioxide